Beer (from barley)

The global average water footprint of barley is 1420 litre/kg. When we consider the amount of malted barley to produce beer, the water footprint of beer is 298 litre of water per litre of beer. This means that one glass of beer (250 ml) costs 74 litre. This excludes the water footprint of other (smaller) ingredients used in the beer production process.


The global water footprint of barley production. Source: Mekonnen and Hoekstra (2010).

Publications

2011 Mekonnen, M.M. and Hoekstra, A.Y. (2011) The green, blue and grey water footprint of crops and derived crop products, Hydrology and Earth System Sciences, 15(5): 1577-1600. Download 1.2 MB
2010 Mekonnen, M.M. and Hoekstra, A.Y. (2010) The green, blue and grey water footprint of crops and derived crop products, Value of Water Research Report Series No.47, UNESCO-IHE. Main Report Volume 1 Download 1.2 MB
Appendices Volume 2 Download 9.7 MB

Global average water footprint

74 litre for a glass of 250 ml

85% green, 6% blue, 9% grey